A less dramatic version of "for the love of God". Often used in more casual situations, when you don't want to get God involved.
Person 1#: "Nancy is knocked up yet again with her 8th child,"
Person #2: "Is she Catholic?"
Person #1: "No, Atheist,"
Person #2: "(For the love of Gandhi)!"
Rahul Gandhi is the best ever Stand-up comedian in the world. He is also known for his invention "aloo se sona". People usually call him "Pappu" because he is still a 2 years old kid from mindset at the actual age of 51. In simple words most stupid politician India ever had. M,ake your child Charlie Chaplin, Mr. Bean but never make your child Rahul Gandhi.
Toofan se pehle ati hai andhi, harbar harta hai Rahul Gandhi.